Answer:
A. The surface area of a cube with side length 4 cm is 6 * (4 cm * 4 cm) = 96 square cm.
B. The total surface area of two pieces of the cube would be 2 * 96 square cm = 192 square cm. This is because cutting the cube into two equal pieces would double the total surface area of the pieces, but the surface area of each individual piece would remain the same.